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A000665 formatted as a simple table:

n a(n)
1 1
2 1
3 2
4 5
5 34
6 2136
7 7013320
8 1788782616656
9 53304527811667897248
10 366299663432194332594005123072
11 1171638318502989084030402509596875836036608

[1,1,2,5,34,2136,7013320,1788782616656,
 53304527811667897248,
 366299663432194332594005123072,
 1171638318502989084030402509596875836036608]

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Last modified December 20 13:54 EST 2009. Contains 171081 sequences.


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